J. Robert Oppenheimer
character Self (archive footage)
Ellen Bradbury Reid
character Self - Daughter of Los Alamos Scientist
Christopher Nolan
character Self - Writer / Director, "Oppenheimer"
Jon Else
character Self - Filmmaker, "The Day After Trinity"
Kai Bird
character Self - Co-Author, "American Prometheus"
Bill Nye
character Self - Science Educator
Richard Rhodes
character Self - Author, "The Making of the Atomic Bomb"
Mareena Robinson Snowden
character Self - Nuclear Security Expert
Alan B. Carr
character Self - Senior Historian, Los Alamos National Laboratory
Gregg Herken
character Self - Author, "Brotherhood of the Bomb"
Jennet Conant
character Self - Author, "109 East Palace"
David Eisenbach
character Self - History Professor, Columbia University
Alex Wellerstein
character Self - Nuclear Historian
Martin J. Sherwin
character Self - Co-Author, "American Prometheus" (voice)
Michio Kaku
character Self - Theoretical Physicist
Leslie Groves
character Self - Director, Manhattan Project (voice) (archive footage)
Charles Oppenheimer
character Self - Grandson
Robert Christy
character Self - Theoretical Physicist (voice) (archive footage)
Robert S. Norris
character Self - Author, "Racing for the Bomb"
Hideko Tamura
character Self - Hiroshima Survivor (Age 10)
Roy Glauber
character Self - Scientist, Manhattan Project (voice) (archive footage)
Edward Teller
character Self - Theoretical Physicist (archive footage)
Eleanor Roosevelt
character Self (archive footage)
Judy Woodruff
character Self (voice) (archive footage)
Adolf Hitler
character Self (archive footage)
Vladimir Putin
character Self (archive Footage)
Xi Jinping
character Self (archive Footage)
Albert Einstein
character Self (archive Footage)
